Portable lamp



FIG. 1 is a perspective view of a portable lamp showing my new design;

FIG. 2 is a rear side view of the portable lamp shown in FIG. 1;

FIG. 3 is a top view of the portable lamp depicted in FIG. 1;

FIG. 4 is a bottom view of a portable lamp depicted in FIG. 1;

FIG. 5 is a left side elevational view of the portable lamp shown in FIG. 1;

FIG. 6 is a right side elevational view of the portable lamp shown in FIG. 1;

FIG. 7 is a front side view of the portable lamp shown in FIG. 1;

FIG. 8 is a another perspective view of the portable lamp shown in FIG. 1;

FIG. 9 is a perspective view of the portable lamp shown in FIG. 1 in an alternate position; and,

FIG. 10 is the perspective view of the portable lamp shown in FIG. 1 in an alternate position; 

The ornamental design for a portable lamp, as shown and described. 